1 files changed, 36 insertions, 0 deletions
diff --git a/src/ipa/rpi/controller/rpi/geq.h b/src/ipa/rpi/controller/rpi/geq.h
new file mode 100644
index 00000000..e8b9f427
--- /dev/null
+++ b/src/ipa/rpi/controller/rpi/geq.h
@@ -0,0 +1,36 @@
+/* SPDX-License-Identifier: BSD-2-Clause */
+/*
+ * Copyright (C) 2019, Raspberry Pi Ltd
+ *
+ * GEQ (green equalisation) control algorithm
+ */
+#pragma once
+
+#include <libipa/pwl.h>
+
+#include "../algorithm.h"
+#include "../geq_status.h"
+
+namespace RPiController {
+
+/* Back End algorithm to apply appropriate GEQ settings. */
+
+struct GeqConfig {
+	uint16_t offset;
+	double slope;
+	libcamera::ipa::Pwl strength; /* lux to strength factor */
+};
+
+class Geq : public Algorithm
+{
+public:
+	Geq(Controller *controller);
+	char const *name() const override;
+	int read(const libcamera::YamlObject &params) override;
+	void prepare(Metadata *imageMetadata) override;
+
+private:
+	GeqConfig config_;
+};
+
+} /* namespace RPiController */